Mindray DC-8 EXP Service Manual

13-8 Troubleshooting of Regular Malfunctions
13.6.2 Key Points Supporting Troubleshooting
No.
Key Points Supporting
Troubleshooting
Remarks
1
Backlight of control panel
To confirm if the control panel is powered
normally
2
Key volume of the keys on control panel.
To confirm if the buzzer works normally.
3
Function key operation response on the
control panel
4
Function key operation response on the
control panel (Digital keyboard)
It can be confirmed the malfunction is on the
retractable keyboard or on the control panel
PCBA.
5
Trackball operation response
6
TGC slider bar operation response
It can be confirmed the malfunction is on the
slider potential device or on the control panel
PCBA.
7
Encoder operation response
It can be confirmed the malfunction is on
encoder or on the control panel PCBA.
8
Control panel self-test
Support malfunction diagnosis
13.6.3 Control Panel Malfunction Troubleshooting
No.
Failure Description
Cause Analysis
Measure
1
Buzzer alarms
Key blocked
Check the control panel for
key block
2
Part of the keys can’t be used
normally
Malfunction may be on
keyboard PCBA or Silicon
key
Replace the keyboard
PCBA. Or Silicon key
3
Part of the keys of digital
keyboard can’t be used
normally
Keyboard malfunction
Replace the digital keyboard
assembly.
4
Trackball can’t be used
normally
Dust or foreign object
blockage in the groove.
Clean the groove.
Trackball speed and
response time in the system
preset are not correct.
Set the trackball speed and
response time to a proper
value.
Trackball performance
degraded.
Replace the trackball.
5
All keys of control panel are
normal,
Single encoder is failure.
Single encoder malfunction
Replace the corresponding
encoder board
6
All keys of control panel are
normal,
Single key of TGC is failure.
TGC board malfunction
Replace TGC board

Mindray DC-8 EXP Specifications

General

Brand	Mindray
Model	DC-8 EXP
Category	Medical Equipment
Language	English